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    <title>Document</title>
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<body>
    <div style="position: relative;margin-top: 200px;text-align:center">
        <div style="margin-bottom: 50px;">
            <h2>成绩登记表</h2>
        </div>
        <div class="alert toast">
            成绩输入有误，请重新输入
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        <div class="tab">
            <table>
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